Issue with returning a Directory Enumerator from NSFileManager using enumeratorAtUrl in Swift

Question

I am attempting to return a NSDirectoryEnumerator object from the NSFileManager method enumeratorAtUrl. This results in a compiler error: Cannot convert the expressions type 'NSDirectoryEnumerator!' to type 'NSDirectoryEnumeratorOptions'

let url:NSURL = NSURL(fileURLWithPath: "/")
var keys:Array<AnyObject> = [NSURLNameKey, NSURLIsDirectoryKey]
var manager:NSFileManager = NSFileManager.defaultManager()
let enumerator:NSDirectoryEnumerator = manager.enumeratorAtURL(url,includingPropertiesForKeys: keys, options: 0, errorHandler: nil)

This works in Obj-C but not Swift.. Has anyone else encountered this issue?

Answer 1

Try this:

let enumerator:NSDirectoryEnumerator = manager.enumeratorAtURL(url, includingPropertiesForKeys: keys, options: NSDirectoryEnumerationOptions(), errorHandler: nil)

Or in short, pass in NSDirectoryEnumerationOptions() instead of "0".

"0" is not really a member of the enumeration it is looking for.